'Tis the season...for ugly-sweater holiday parties. And it got us thinking: Sometimes even the most lovable celebrities (and characters) have made bad knitwear choices. From fugly Fair Isle crewnecks to kitschy Christmas pullovers, check out our collection of the ugliest sweaters to ever hit Hollywood.

Cliff Huxtable, The Cosby Show

When Bill Cosby's character dispensed his patriarchal words of wisdom back in the day, his trademark sweaters never seemed all that bad. What a difference nearly 30 years makes. Yikes!

Photo: YouTube

Ferris Bueller, Ferris Bueller's Day Off

Save Ferris...from this sweater! Sure, Matthew Broderick's character was the king of the cool kids, but did he take that three-button, printed V-neck sweater out of his dad's closet before skipping school?

Photo: YouTube

Liz Lemon, 30 Rock

In a memorable holiday episode, Liz Lemon (Tina Fey) was visited by her family for Christmas. In an effort to pretend they were the picture of domestic perfection, the whole clan wore matching snowflake sweaters. (They later got into a screaming match at dinner in front of an amused Jack Donaghy and his mother.)

Photo: NBC

Justin Bieber

During a performance on the Today show to promote his holiday album, the Biebs showed up in something that can only be described as ugly-Christmas-sweater-meets-varsity-letter-jacket chic. Somehow, though, we don't think this is something you'll be seeing in school hallways any time soon.

Photo: Getty Images

Abed and Troy, Community

BFFs and roommates Troy (Donald Glover) and Abed (Danny Pudi) do everything together, so if one is going to perform a holiday-themed rap while wearing a Christmas sweater, then—gosh darn it—they both are. And we're secretly glad they did.

Photo: NBC

Mr. Rogers, Mr. Rogers' Neighborhood

It may have been a beautiful day in the neighborhood, but that was one ugly sweater! Luckily his personality, not wardrobe, was the big draw on the children's show.

Photo: Getty Images

Brandon Flowers

Normally the Killers are dressed to the nines, so when they went all out in tacky garb in the video for their annual Christmas song "Don't Shoot Me Santa," we knew they were in on the joke.

Photo: YouTube

Will Smith, The Fresh Prince of Bel-Air

Will was pretty fly as the Fresh Prince, but we're sure the superstar would rather forget this Technicolor jacket-sweater combo.

Photo: Getty Images

Jeffrey Lebowski, The Big Lebowski

If anyone can pull off this crazy cardigan, "the Dude" can. Luckily, Jeff Bridges has much better taste.

Photo: YouTube

Lars Lindstrom, Lars and the Real Girl

We know, we know: How can we possibly put Ryan Gosling and the word "ugly" in the same category? Take one took at his character's sweater and you'll understand.

Photo: YouTube

Doug Funny, Doug

Do you remember the episode on the animated series when Doug's outfit became a major trend in Bluffington—and everyone wore his green vest? It was as scary as it was funny.

Photo: YouTube

Cameron Tucker, Modern Family

We can't say we were surprised that Cam, played by Eric Stonestreet, would wear this holly, jolly Christmas sweater. He dresses the part for every occasion. But because he's so lovable, we'll forgive him for this crime of holiday fashion.

Photo: ABC

Roseanne Conner, Roseanne

After a dispute with her neighborhood association over holiday decorations, Roseanne Barr's character rallied her family to go all out for a "white trash" Christmas, complete with this fabulous candy-cane sweater.

Photo: YouTube

John Mayer

The singer was definitely in the holiday spirit when he wore this ensemble during an appearance on Ellen. But we couldn't focus on his singing; the sweater and coordinating red pants were too distracting.

Photo: YouTube

Mark Darcy, Bridget Jones

Colin Firth's character, Mark Darcy, wore this silly reindeer sweater in the original movie and the sequel. Fingers crossed it is somehow incorporated into the plot of the upcoming Bridget Jones' Baby. We've grown to like it.

Photo: Miramax

Snoop Dogg

Nobody does it like Snoop! The rapper put his own spin on the traditional The Night Before Christmas—he read his own Snooped-up version of the story, while dressed in a snowman sweater, Santa hat and fur coat, in a video he created for his fans.

Photo: YouTube

Matt Damon

The We Bought a Zoo star showed his sense of humor by wearing this Santa sweater on the Today show. However, it just proved that even if you were once crowned the "Sexiest Man Alive," it's hard to make this style look good...on anyone.